Product Category
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Boom Length Sensor ReelZ’-43B Box (Cable Reel)
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Zoomlion GJ-1 Overwind Protection Switch
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Hirschmann Industrial On-Board Controller
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Hirschmann A2B-Z DC-12 Height Limit Switch (Anti-Overwinding Switch)
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XCMG XESA2B-CL15M
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XCMG Crane CAN Communication Length & Angle Conversion Board
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LWG152 Cable Reel Sensor Assembly for Crane Length & Angle Measurement
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SANY Crane Height Limiter (Anti-Overwinding Switch)
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Hirschmann DAVC 300/2512 Hydraulic Transducer
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XCMG Crane HC4900 Load Moment Limiter Main Board
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Hirschmann LWG610 Length & Angle Sensor Reel Box
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SANY Crane Height Limiter (ZN101W)
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XCMG Crane Dedicated ICP6600-104 Load Moment Limiter Display | High-End Intelligent Safety Terminal
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Zoomlion 25K/FKD/XCT/8-Ton Universal Truck Tail Light
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Electronic Accelerator Pedal for Electric Vehicles
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Electronic Accelerator Pedal for Construction Machinery
Zoomlion GJ-1 Anti-Overwinding Switch
The GJ-1 Anti-Overwinding Switch is a safety protection device designed specifically for engineering lifting equipment, primarily used in the hoisting mechanisms of mobile cranes, crawler cranes, and similar machinery. It triggers automatically when the hook reaches the preset upper limit position, cutting off the power supply to prevent equipment damage and safety accidents caused by wire rope overwinding. It is a core component for ensuring safe lifting operations.
Description
Tags
| Feature | Detailed Description |
| Overwinding Protection | When the hook rises to the limit position, the switch activates immediately, cutting power to the hoisting mechanism and forcing an immediate stop of the upward movement |
| Overload Resistance | The housing and internal components withstand vibration, shock, and harsh outdoor conditions typical of engineering machinery |
| High Reliability | Sealed construction provides dust and water resistance, ensuring stable operation in challenging environments |
| Quick Reset | Can be manually reset quickly after triggering, restoring normal equipment operation |
| Parameter | Specification |
| Model | GJ-1 |
| Rated Voltage | DC 24V / AC 220V (Optional) |
| Contact Capacity | 5A / 250V AC |
| Trigger Method | Mechanical Impact |
| Protection Class | IP54 |
| Housing Material | High-Strength Engineering Plastic |
| Mounting Type | Bolt Fixation |
| Operating Temperature Range | -20℃ ~ +60℃ |
| Wiring Configuration | 2-Wire System (Red/Black) |
Various tower cranes and portal harbor cranes
Other engineering machinery requiring hoisting height limitation
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